CN203439721U - Energy-saving positive-negative-pressure pneumatic air seal machine - Google Patents
Energy-saving positive-negative-pressure pneumatic air seal machine Download PDFInfo
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- CN203439721U CN203439721U CN201320532117.5U CN201320532117U CN203439721U CN 203439721 U CN203439721 U CN 203439721U CN 201320532117 U CN201320532117 U CN 201320532117U CN 203439721 U CN203439721 U CN 203439721U
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Abstract
An energy-saving positive-negative-pressure pneumatic air seal machine is provided with a shell body. A feeding opening is formed above the shell body. A discharging opening is formed below the shell body. A partitioning plate which is vertically arranged is arranged in the middle in a cavity of the shell body to divide the cavity in the shell body into a front discharging channel and a back discharging channel. An upper vane and a lower vane are arranged in each channel through an upper rotating shaft and a lower rotating shaft. The energy-saving positive-negative-pressure pneumatic air seal machine is characterized in that a front sealing plate and a back sealing plate are arranged on the upper portion of the partitioning plate, a plurality of air spraying holes are formed in the partitioning plate, a front air inlet channel is formed between the front arc sealing plate and the partitioning plate, a back air inlet channel is formed between the back arc sealing plate and the partitioning plate, an air inlet is formed corresponding to the front air inlet channel and the back air inlet channel and is externally connected with an air inlet pipe, the upper rotating shaft in the front discharging channel and the lower rotating shaft in the back discharging channel extend to one side outside the shell body, the lower rotating shaft in the front discharging channel and the upper rotating shaft in the back discharging channel extend to the other side outside the shell body, and linkage transmission mechanisms are arranged between the two rotating shafts on the two sides of the shell body. The energy-saving positive-negative-pressure pneumatic air seal machine can be used for a positive-negative-pressure air conveying or dust removing system, the problem that an existing valve type air seal machine cannot be suitable for a discharging opening positive-pressure air net system is solved, and the energy-saving positive-negative-pressure pneumatic air seal machine is mainly suitable for a pneumatic conveying and ventilation dust removing system in industries such as grain, fodder, food processing plants, medicine, chemical engineering, tobacco, metallurgy and cement.
Description
Technical field
The utility model relate to that industrial strength is carried and ventilating and purifying air system in close wind device for discharging, the pneumatic air sealer of especially a kind of energy-saving positive/negative-pressure.
Background technology
Air sealer is requisite parts in strength conveying and ventilating and purifying air system, it be wind net from the different air pressure high fields such as wind net, wind net and air environment between the logistics corridor of solid material exchange, when it has in carrying out solid material exchange process, by the air pressure high field of the different pressure of tool or system environments isolation, guarantee that between each pressure field, pressure is independent and mutually stable, air and pressure are not revealed, and gas is circulation mutually not.The technological core of this device in application, first must realize and import and export sealing, does not allow because import and export the different and pressure reduction that causes in pressure at two ends field, at the inner air by-pass passage that forms of air sealer.Then guarantee discharge, otherwise the air-flow of air by-pass passage drives material movement, thereby cannot realize, closes wind and discharge function.
Market air sealer form is varied at present, can be by classification such as version, mode of motion, type of drive, application scenario, system pressures.These several classification are again mutually to contain intersection each other.In structure, can be divided into vane type, valve-type substantially; On application scenario and system pressure, can be divided into and close wind formula, unloading type, positive/negative-pressure discharge, negative pressure discharge etc.In common engineering application, mainly take textural classification as main, vane type is topmost a kind of form, accounts for the market share more than 99.5%, and the application of valve-type air sealer is emerging a kind of novel air sealer in recent years, and starts to be gradually applied to produce in reality.But the problem that rotary airlock exists is: the version of rotary airlock and pass wind principle, be utilize a plurality of impellers storehouse connect to realize with feed inlet and outlet successively to connect material, discharge, utilize the feed bin blade radial end face of the both sides between charging and discharging mouth and housing circular radial side face minim gap, feed bin axial two ends end face to seal air sealers import and export pressure with housing two side plane minim gaps.
This radially and endplay be the key request that guarantees air sealer sealing, be also the basic reason that causes rotary airlock high energy consumption, high fault rate.
When manufacturing and designing rotary airlock, be to guarantee the rigidity of impeller and housing, and right alignment, and reduction impeller vane footpath end face and housing shaft are to the wearing and tearing of, radial sealing surfaces.Conventionally adopt the foundry goods of larger quality, guarantee rigidity, steel consumption is large; Adopt higher precision and roughness to process contact sealing surface.For guaranteeing the tolerance clearance between impeller and housing, in production and assembly process, must be to impeller and the pairing of housing data, inefficiency, equipment and artificial expense are larger.When paired data surpasses in tolerance clearance, prescribe a time limit, air sealer housing and impeller can occur stuck, burning even electrical motor becomes normality and cannot solve; When paired data surpasses under tolerance clearance, prescribe a time limit, cannot be sealed into delivery pressure field, form air flow passage and cannot close wind and discharge.
When a Delta, to the air sealer of technical standard, producing after a period of time, sealing property and discharge efficiency constantly decline.Major cause is: the material in impeller feed bin is under the effect of centnifugal force, and a part rubs with housing seal face, and a part is embedded between impeller radial end face and housing seal face, hinders vane rotary, weares and teares axially and radial sealing surfaces.Air sealer work-hours is longer, and the wearing clearance of the sealing surface of this both direction is increasing.Not only cause air sealer current of electric to strengthen, reductor working condition changes, and solid accumulation is stuck by blade on sealing surface even, stall occurs, motor damage; Next causes wind fortune system or dust pelletizing system pressure leakage, thereby there is fan condition point, is offset, and causes blower fan power consumption to strengthen.Finally, the material that should be got rid of by air sealer is but taken away by leakage current, except the low work efficiency of system.
The problem that valve-type air sealer exists is:
1, structure is larger, and the present widely used rotary airlock of aspect ratio is high, and flange is large, can not with rotary airlock Alternate, so its application is only suitable for newly-built wind net, be not suitable for current energy-saving and emission-reduction, equipment rehabilitation work.Cannot form larger economic benefit;
2, can not be applied to discharge gate is in malleation wind network system.During its discharging, only utilize material deadweight to decline, during discharge, material flow is slower, exists material not yet emptying in discharge process, and discharge door is buttoned-up phenomenon, and discharge efficiency is low.Only applicable exit negative pressure and atmospheric air field.Application scenario is only the whole use occasions of air sealer 50% left and right.If discharge gate is positive pressure air field, positive pressure air is held material and is declined, and material is difficult to or cannot discharges from discharge gate;
3, blade easily adheres to wet viscous material in operational process, without manner of cleaning up, causes runner sealing not tight;
4, four of left and right bin gate adopts independent four air cylinder driven, do not adopt mechanical linkage or interlock, exist and cause speed difference because of cylinder unbalance stress, forming each bin gate coordinates the time difference that entanglement occurs, cause upper and lower two bin gates in material channel to exist simultaneously the opening in various degree, thereby destroy wind net equalization of pressure, cause convey materials loss and blower fan electric energy loss to increase.
Summary of the invention
The purpose of this utility model will solve exactly in strength and carry, ventilating and purifying air system adopts rotary airlock, manufacturing cost is high, operation power consumption is large, impeller is easily stuck, motor damage, and valve-type air sealer can not be suitable for positive pneumatic conveying system work, and four-cylinder drives, complex structure, action is difficult to coordinate to destroy the problems such as wind net equilibrium, provides a kind of energy-saving positive/negative-pressure pneumatic air sealer.
Concrete scheme of the present utility model is: for existing valve-type air sealer, improve, it has housing, the top of housing is provided with inlet point, below is provided with discharging opening, before in housing chamber, middle part is provided with dividing plate housing inner chamber is divided into, rear two discharging channels, on passing through in every discharging channel, lower rotary shaft is provided with, lower blade, before dividing plate, rear both sides are positioned at, the lower blade place of closing is equipped with closing plate, and before housing, on rear quarter panel, be positioned at the blade place of closing and be provided with closing plate, it is characterized in that: before described dividing plate top, rear closing plate, curved design, and respectively have several fumaroles on two arc closing plates, the oblique downward setting of fumarole opening, before, before forming between rear arc closing plate and dividing plate, rear free air diffuser, on housing before correspondence, rear free air diffuser has the external air inlet pipe of admission port, upper rotating shaft in described front discharging channel and the lower rotary shaft in a rear discharging channel side outside housing is extended, on in lower rotary shaft in described front discharging channel and rear discharging channel, turning the outer opposite side of axial shell extends, actuator linkage is all installed between two rotating shafts separately in housing both sides, and the blade synchronization realizing in rotating shaft between two opens or closes.
Actuator linkage described in the utility model, is that swing arm is installed separately on two spindle noses, is provided with a synchronising (connecting) rod, and the two ends of synchronising (connecting) rod adopt bearing pin to be connected with two swing arm outer ends, and on a bearing pin, are connected with a driving cylinder therein.
For increasing discharge efficiency, powerful cleaning blade surface adhered materials and runner sealing face, the gas ejector pipe of lateral arrangement is installed near housing front side plate and housing rear quarter panel respectively in the utility model in forward and backward discharging channel, on two gas ejector pipes, have some fumaroles, the oblique downward setting of fumarole opening.And described gas ejector pipe is provided with the fumarole of two groups of differing tilt angles, respectively towards the forward and backward side of corresponding rotating shaft.
Observe for convenience discharge situation, in the utility model, on the forward and backward side plate of housing, transparent observing, access panel are installed.
For convenience of discharge, improve sealing property, the bottom of housing described in the utility model is bucket shape structure.
For guaranteeing work safety, improve complete machine stability and service life, beautify outward appearance, in the utility model, in housing arranged on left and right sides, be respectively equipped with actuator linkage dust boot.
Principle of work of the present utility model is: when the utility model (air sealer discharge gate connects positive and negative pressure delivery duct) when the positive and negative pressure air-transport system, thereby the admission port in the utility model and gas ejector pipe all external air inlet pipe provide jet when discharge material, the pressurising of charging and discharging chamber of malleation air-flow to guarantee forward pressure reduction quick discharge.During the utility model work, former and later two discharging channels are the staggered discharges that carry out, before during discharging channel discharge, after front bin gate blade is first closed by the same side air cylinder driven, lower blade before opposite side air cylinder driven in discharging channel is opened, and the blade after simultaneously driving in discharging channel is also opened (referring to Fig. 2); And the same side cylinder before driving, the blade in discharging channel is in closed condition (leaking out while preventing discharge) simultaneously, lower blade after driving in discharging channel is in closed condition (discharging channel charging after guaranteeing), front discharging channel carries out discharge, then discharging channel charging; For overcoming the malleation air-flow in delivery duct, in front discharging channel, after blade is closed, by closing plate air nozzle and gas ejector pipe, add larger malleation air-flow, thereby guarantee smooth and easy discharge (now, discharging channel does not need jet).After discharge completes, after the blade in the lower blade in front discharging channel and rear discharging channel is closed simultaneously, the lower blade in the blade in front discharging channel and rear discharging channel is opened simultaneously, front discharging channel charging, rear discharging channel discharge.During discharge, add equally malleation air-flow (referring to Fig. 3).
The utility model is owing to having introduced discharge air jet system, during discharge, add in time malleation air-flow, thereby guaranteed discharge smooth and easy (solved valve-type air sealer can not for positive pneumatic conveying system and a ventilating and purifying air system difficult problem), meanwhile, malleation air-flow can be cleared up the bonding material on blade.The utility model has also adopted linkage drive units, only needs two cylinder operation, saves source of the gas, and front and back bin gate is opened interlocking, guarantees sealing, and harmony is good simultaneously, has guaranteed the work of wind net equalization stable.
Accompanying drawing explanation
Fig. 1 is the utility model perspective view (having removed left dust boot in figure);
Cutaway view when Fig. 2 is the front discharging channel discharge of the utility model;
Fig. 3 is cutaway view during discharging channel discharge after the utility model;
Fig. 4 is the front view of upper sealing panel;
Fig. 5 is gas ejector pipe front view.
In figure: 1-discharging opening, 2-cylinder, 3-rotating shaft, 4-housing, 5-swing arm, 6-bearing pin, 7-admission port, 8-inlet point, 9-synchronising (connecting) rod, 10-gas ejector pipe, 11-observation window, 12-dust boot, 13-rear discharging channel, 14-closing plate, 15-rear discharging channel blade, 16-front discharging channel blade, 17-dividing plate, 18-front discharging channel, 19-front discharging channel lower blade, 20-rear discharging channel lower blade, 21,22-fumarole.
The specific embodiment
Referring to Fig. 1, 2, 3, the utility model includes housing 4, the top of housing 4 is provided with inlet point 8, below is provided with discharging opening 1, before in housing 4 chambeies, middle part is provided with vertically arranged dividing plate 17 housing 4 inner chambers is divided into, rear two discharging channels 18 and 13, on passing through in every discharging channel, lower rotary shaft 3 is provided with, lower blade 15, 16, 19, 20, before dividing plate 17, rear both sides are positioned at, the lower blade place of closing is equipped with closing plate 14, and before housing 4, on rear quarter panel, be positioned at the blade place of closing and be provided with closing plate 14, it is characterized in that: before described dividing plate 17 tops, rear closing plate 14, curved design is (referring to Fig. 2, Fig. 3), and on two arc closing plates 14, respectively have three fumaroles 21, the oblique downward setting of fumarole 21 opening, before, before forming between rear arc closing plate 14 and dividing plate 17, rear free air diffuser, on housing 4 before correspondence, rear free air diffuser has the external air inlet pipe of admission port 7, upper rotating shaft 3 in described front discharging channel 18 and the lower rotary shaft 3 in rear discharging channel 13 are to the outer right extension of housing 4, lower rotary shaft 3 in described front discharging channel 18 extends to the outer left side of housing 4 with the upper rotating shaft 3 in rear discharging channel 13, in housing 4 both sides, between two rotating shafts 3, actuator linkage is installed separately, the blade synchronization realizing in rotating shaft between two opens or closes.
Actuator linkage described in the present embodiment, is that swing arm 5 is installed separately on two spindle noses, is provided with a synchronising (connecting) rod 9, and the two ends of synchronising (connecting) rod 9 adopt bearing pin 6 to be connected with two swing arm outer ends, and on a bearing pin 6, are connected with a driving cylinder 2 therein.
In the present embodiment, in forward and backward discharging channel 18 and 13, near housing 4 front side plates and housing rear quarter panel, be provided with on 10, two gas ejector pipes of gas ejector pipe of lateral arrangement and all have some fumaroles 22, the oblique downward setting of fumarole 22 opening respectively.
Gas ejector pipe described in the present embodiment 10 is provided with the fumarole 21,22 of two groups of differing tilt angles, respectively towards the forward and backward side of corresponding rotating shaft.
In the present embodiment, on the forward and backward side plate plate of housing 4, transparent observing, access panel 11 are installed.
The bottom of housing described in the present embodiment 4 is bucket shape structure.
In the present embodiment, in housing 4 arranged on left and right sides, be respectively equipped with actuator linkage dust boot 12.
Claims (7)
1. the pneumatic air sealer of energy-saving positive/negative-pressure, there is housing, the top of housing is provided with inlet point, below is provided with discharging opening, in housing chamber, middle part is provided with dividing plate, before housing inner chamber is divided into, rear two discharging channels, on passing through in every discharging channel, lower rotary shaft is provided with, lower blade, before dividing plate, rear both sides are positioned at, the lower blade place of closing is equipped with closing plate, and before housing, on rear quarter panel, be positioned at the blade place of closing and be provided with closing plate, it is characterized in that: before described dividing plate top, rear closing plate, curved design, and respectively have several fumaroles on two arc closing plates, the oblique downward setting of fumarole opening, before, before forming between rear arc closing plate and dividing plate, rear free air diffuser, on housing before correspondence, rear free air diffuser has the external air inlet pipe of admission port, upper rotating shaft in described front discharging channel and the lower rotary shaft in a rear discharging channel side outside housing is extended, on in lower rotary shaft in described front discharging channel and rear discharging channel, turning the outer opposite side of axial shell extends, actuator linkage is all installed between two rotating shafts separately in housing both sides, and the blade synchronization realizing in rotating shaft between two opens or closes.
2. the pneumatic air sealer of energy-saving positive/negative-pressure according to claim 1, it is characterized in that: described actuator linkage, that swing arm is installed separately on two spindle noses, be provided with a synchronising (connecting) rod, the two ends of synchronising (connecting) rod adopt bearing pin to be connected with two swing arm outer ends, and on a bearing pin, are connected with a driving cylinder therein.
3. the pneumatic air sealer of energy-saving positive/negative-pressure according to claim 1, it is characterized in that: the gas ejector pipe that lateral arrangement is installed near housing front side plate and housing rear quarter panel respectively in forward and backward discharging channel, on two gas ejector pipes, have some fumaroles, the oblique downward setting of fumarole opening.
4. the pneumatic air sealer of energy-saving positive/negative-pressure according to claim 3, is characterized in that: described gas ejector pipe is provided with the fumarole of two groups of differing tilt angles, respectively towards the forward and backward side of corresponding rotating shaft.
5. the pneumatic air sealer of energy-saving positive/negative-pressure according to claim 1, is characterized in that: on the forward and backward side plate of housing, transparent observing, access panel are installed.
6. the pneumatic air sealer of energy-saving positive/negative-pressure according to claim 1, is characterized in that: the bottom of described housing is bucket shape structure.
7. the pneumatic air sealer of energy-saving positive/negative-pressure according to claim 1, is characterized in that: in housing arranged on left and right sides, be respectively equipped with actuator linkage dust boot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532117.5U CN203439721U (en) | 2013-08-29 | 2013-08-29 | Energy-saving positive-negative-pressure pneumatic air seal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532117.5U CN203439721U (en) | 2013-08-29 | 2013-08-29 | Energy-saving positive-negative-pressure pneumatic air seal machine |
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| Publication Number | Publication Date |
|---|---|
| CN203439721U true CN203439721U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532117.5U Expired - Fee Related CN203439721U (en) | 2013-08-29 | 2013-08-29 | Energy-saving positive-negative-pressure pneumatic air seal machine |
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| CN (1) | CN203439721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836474A (en) * | 2016-04-21 | 2016-08-10 | 黄石市粮丰机械有限公司 | Intelligent three-axis and three-door type energy-saving air seal machine |
| CN109442052A (en) * | 2018-12-02 | 2019-03-08 | 新乡市高服机械股份有限公司 | A kind of silo roof switching valve |
-
2013
- 2013-08-29 CN CN201320532117.5U patent/CN203439721U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836474A (en) * | 2016-04-21 | 2016-08-10 | 黄石市粮丰机械有限公司 | Intelligent three-axis and three-door type energy-saving air seal machine |
| CN105836474B (en) * | 2016-04-21 | 2017-11-10 | 黄石市粮丰机械有限公司 | A kind of intelligent gate-type of three axle three energy-conservation airlock |
| CN109442052A (en) * | 2018-12-02 | 2019-03-08 | 新乡市高服机械股份有限公司 | A kind of silo roof switching valve |
| CN109442052B (en) * | 2018-12-02 | 2024-04-02 | 新乡市高服机械股份有限公司 | Cabin roof steering valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |